LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 5 von insgesamt 5

Suchoptionen

  1. Artikel ; Online: Promoted adsorptive removal of chromium(vi) ions from water by a green-synthesized hybrid magnetic nanocomposite (NFe

    Mahmoud, Mohamed E / El-Sharkawy, Rehab M / Ibrahim, Ghada A A

    RSC advances

    2021  Band 11, Heft 24, Seite(n) 14829–14843

    Abstract: A novel magnetic starch-crosslinked-magnetic ethylenediamine nanocomposite, ... ...

    Abstract A novel magnetic starch-crosslinked-magnetic ethylenediamine nanocomposite, NFe
    Sprache Englisch
    Erscheinungsdatum 2021-04-21
    Erscheinungsland England
    Dokumenttyp Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d1ra00961c
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel ; Online: Adsorption of

    Abdelmonem, Islam M / Allam, Elhassan A / Gizawy, Mohamed A / El-Sharkawy, Rehab M / Mahmoud, Mohamed E

    International journal of biological macromolecules

    2022  Band 229, Seite(n) 344–353

    Abstract: A sustainable and efficient nanobentonite@sodium alginate@oleylamine (Nbent@Alg@OA) nanocomposite has been successfully synthesized via coating reaction of nanobentonite (Nbent) with alginate (Alg) and oleylamine (OA). The nanocomposite has been ... ...

    Abstract A sustainable and efficient nanobentonite@sodium alginate@oleylamine (Nbent@Alg@OA) nanocomposite has been successfully synthesized via coating reaction of nanobentonite (Nbent) with alginate (Alg) and oleylamine (OA). The nanocomposite has been characterized and examined for the adsorption of
    Mesh-Begriff(e) Spectroscopy, Fourier Transform Infrared ; Adsorption ; Alginates/chemistry ; Cobalt Radioisotopes ; Nanocomposites/chemistry ; Water Pollutants, Chemical/chemistry ; Hydrogen-Ion Concentration ; Kinetics
    Chemische Substanzen oleylamine (ZDQ1JWQ8DT) ; Alginates ; Cobalt-60 (5C8182XDPZ) ; Cobalt Radioisotopes ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2022-12-29
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2022.12.288
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel: Functionalization of CeO2-SiO2-(CH2)3-Cl nanoparticles with sodium alginate for enhanced and effective CdII, PbII, and ZnII ions removal by microwave irradiation and adsorption technique

    El-Sharkawy, Rehab M / Allam, Elhassan A / Mahmoud, Mohamed E

    Environmental nanotechnology, monitoring & management. 2020 Dec., v. 14

    2020  

    Abstract: A novel nanocomposite cored of cerium oxide nanoparticles (CeO₂) linked with sodium alginate (Sod. Alg) using 3-chloroopropyltrimethoxysilane was synthesized via a green synthesis method using microwave irradiation to yield a new (CeO₂-Si-(CH₂)₃-Alg) ... ...

    Abstract A novel nanocomposite cored of cerium oxide nanoparticles (CeO₂) linked with sodium alginate (Sod. Alg) using 3-chloroopropyltrimethoxysilane was synthesized via a green synthesis method using microwave irradiation to yield a new (CeO₂-Si-(CH₂)₃-Alg) nanocomposite. Its characteristics were evaluated using Fourier-transform infrared sptectroscopy (FT-IR), thermogravimetric thermal analysis (TGA), X-ray powder diffraction (XRD), Energy Dispersive X-rays (EDX), scanning-electron microscope (SEM) and high-resolution transmission-electron microscope (HR-TEM) to prove the possible binding between the reactants, as well as to illustrate the composition of this new nanomaterial. The SEM and HR-TEM established that the average particle size of the nanocomposite was 86.52 nm. The nanocomposite was investigated for the remediation of Pbᴵᴵ, Cdᴵᴵ and Znᴵᴵ ions from water using the microwave sorption process. Various controlling parameters were monitored during the remediation processes, including pH of contact solution, irradiation time, ionic concentration of the target metals, and the mass dosage of nanocomposite. The maximum metal up-take capacities were 1434.5, 118.9, and 61.68 mgg⁻¹ for Pbᴵᴵ, Cdᴵᴵ and Znᴵᴵ, respectively by applying 1.0 mL of 0.1 mol L⁻¹ metal ion concentration, 11−13 second irradiation time, pH 7.0, and 5.0 mg mass of the CeO₂-Si-(CH₂)₃-Alg nanocomposite. The adsorption kinetics of Pbᴵᴵ, Cdᴵᴵ, and Znᴵᴵ ions onto CeO₂-Si-(CH₂)₃-Alg nanocomposite proved to fit the pseudo-second-order kinetics model. The adsorption mechanism fitted the Freundlich isotherm model more than it did with the Langmuir model. This study confirmed the excellent characteristics of the CeO₂-Si-(CH₂)₃-Alg nanocomposite in the remediation of heavy metals from aqueous solutions.
    Schlagwörter X-ray diffraction ; administrative management ; adsorption ; energy ; irradiation ; microwave radiation ; models ; nanoceria ; nanocomposites ; pH ; particle size ; remediation ; sodium alginate ; sorption isotherms ; thermogravimetry
    Sprache Englisch
    Erscheinungsverlauf 2020-12
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel
    Anmerkung NAL-AP-2-clean
    ZDB-ID 2821777-9
    ISSN 2215-1532
    ISSN 2215-1532
    DOI 10.1016/j.enmm.2020.100367
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

  4. Artikel ; Online: Nano-manganese oxide-functionalized-oleyl amine as a simple and low cost nanosorbent for remediation of Zn

    Mahmoud, Mohamed E / Allam, Elhassan A / El-Sharkawy, Rehab M / Soliman, Mohamed A / Saad, Ebitasem A / El-Khatib, Ahmed M

    Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

    2020  Band 159, Seite(n) 108989

    Abstract: The contribution of oleyl amine as a biodegradable and simple aliphatic compound containing amine functional group (- ... ...

    Abstract The contribution of oleyl amine as a biodegradable and simple aliphatic compound containing amine functional group (-NH
    Sprache Englisch
    Erscheinungsdatum 2020-02-19
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1142596-9
    ISSN 1872-9800 ; 0883-2889 ; 0969-8043
    ISSN (online) 1872-9800
    ISSN 0883-2889 ; 0969-8043
    DOI 10.1016/j.apradiso.2019.108989
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  5. Artikel ; Online: A novel nanocomposite of Liquidambar styraciflua fruit biochar-crosslinked-nanosilica for uranyl removal from water.

    Mahmoud, Mohamed E / Khalifa, Mohamed A / El Wakeel, Yasser M / Header, Mennatllah S / El-Sharkawy, Rehab M / Kumar, Sandeep / Abdel-Fattah, Tarek M

    Bioresource technology

    2019  Band 278, Seite(n) 124–129

    Abstract: Biochar adsorption has been protruded as a sustainable green and economic process for water remediation. This technology is facing high challenges in removing different pollutants, owning to the stable chemical and physical features of biochar. Therefore, ...

    Abstract Biochar adsorption has been protruded as a sustainable green and economic process for water remediation. This technology is facing high challenges in removing different pollutants, owning to the stable chemical and physical features of biochar. Therefore, a novel nanocomposite of Liquidambar styraciflua fruit biochar-crosslinked-nanosilica (BC-Gl-NSi) was synthesized and characterized (surface area = 60.754 m
    Mesh-Begriff(e) Adsorption ; Charcoal/chemistry ; Fruit/chemistry ; Liquidambar/chemistry ; Nanocomposites/chemistry ; Particle Size ; Temperature ; Water/chemistry ; Water Pollutants, Chemical/chemistry ; Water Pollutants, Chemical/isolation & purification ; Water Purification/methods
    Chemische Substanzen Water Pollutants, Chemical ; biochar ; Water (059QF0KO0R) ; Charcoal (16291-96-6)
    Sprache Englisch
    Erscheinungsdatum 2019-01-15
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1065195-0
    ISSN 1873-2976 ; 0960-8524
    ISSN (online) 1873-2976
    ISSN 0960-8524
    DOI 10.1016/j.biortech.2019.01.052
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang